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传统Angle错(牙合)分类法基于临床描述,将Angle Ⅱ类 2 分类错(牙合)鉴定义为磨牙和尖牙远中关系,且上颌切牙舌向倾斜,而是否存在特定的骨骼型仍有争议。本研究的目的是:①根据传统Angle分类法选择病例,描述 Angle Ⅱ类 2 分类错(牙合)骨骼和牙齿的X线头影测量特征。②相似的年龄分布,比较 Angle Ⅱ类 2 分类与 Angle Ⅱ类 1 分类和AngleⅠ类错(牙合)畸形。③如果可能,界定相对AngleⅠ和 Angle Ⅱ类 1 分类错(牙合)的 Angle Ⅱ类 2 分类矢状和垂直向位置。 材料和方法 选择Angled Ⅱ类 2 分类错(牙合)50例,其中男21例,女29例,平均年龄为(12.7±1.6)岁。AngleⅠ类和Angle Ⅱ类 1 分类为对照组,其中
The traditional Angle malocclusion classification is based on the clinical description of Angle Ⅱ Class 2 malocclusion identified as molar and canine distal relationship, and the maxillary incisor tongue tilt, and the presence of a specific skeletal type Still controversial. The purpose of this study is to: â '¢ According to the traditional Angle classification method to select the case, described Angle â ... ¢ 2 classification errors (occlusal) bones and teeth X-cephalometry characteristics. ② similar age distribution, compared Angle Ⅱ class 2 classification and Angle Ⅱ class 1 classification and Angle Ⅰ class malocclusion. (3) If possible, class II class 2 sagittal and vertical positions relative to Angle I and Angle II class 1 malocclusion are defined. MATERIALS AND METHODS Fifty Angled class II malocclusion patients were selected, including 21 males and 29 females, with an average age of (12.7 ± 1.6) years. AngleⅠ and Angle Ⅱ class 1 were classified as control group, among them